beta 2014.01.25 01:44

1 files changed, 9 insertions, 4 deletions

diff --git a/tex/context/base/l-lpeg.lua b/tex/context/base/l-lpeg.lua
index 982d8f98d..6d3acd753 100644
--- a/tex/context/base/l-lpeg.lua
+++ b/tex/context/base/l-lpeg.lua
@@ -6,6 +6,10 @@ if not modules then modules = { } end modules ['l-lpeg'] = {
     license   = "see context related readme files"
 }
 
+-- lpeg 12 vs lpeg 10: slower compilation, similar parsing speed (i need to check
+-- if i can use new features like capture / 2 and .B (at first sight the xml
+-- parser is some 5% slower)
+
 -- a new lpeg fails on a #(1-P(":")) test and really needs a + P(-1)
 
 -- move utf    -> l-unicode
@@ -15,14 +19,15 @@ lpeg = require("lpeg")
 
 -- The latest lpeg doesn't have print any more, and even the new ones are not
 -- available by default (only when debug mode is enabled), which is a pitty as
--- as it helps bailign down bottlenecks. Performance seems comparable, although
+-- as it helps nailign down bottlenecks. Performance seems comparable: some 10%
+-- slower pattern compilation, same parsing speed, although,
 --
 -- local p = lpeg.C(lpeg.P(1)^0 * lpeg.P(-1))
--- local a = string.rep("123",10)
+-- local a = string.rep("123",100)
 -- lpeg.match(p,a)
 --
--- is nearly 20% slower and also still suboptimal (i.e. a match that runs from
--- begin to end, one of the cases where string matchers win).
+-- seems slower and is also still suboptimal (i.e. a match that runs from begin
+-- to end, one of the cases where string matchers win).
 
 if not lpeg.print then function lpeg.print(...) print(lpeg.pcode(...)) end end